package org.csu.small.utils;

import java.math.BigDecimal;

/**
 * @author SongYaolun
 * @version 1.0
 * @date 2020/7/4 10:32
 */
public class BigDecimalUtil {

    private BigDecimalUtil() {

    }

    /**
     * 加
     */
    public static BigDecimal add(double v1, double v2) {
        BigDecimal b1 = new BigDecimal(Double.toString(v1));
        BigDecimal b2 = new BigDecimal(Double.toString(v2));
        return b1.add(b2);
    }

    /**
     * 减
     */
    public static BigDecimal sub(double v1, double v2) {
        BigDecimal b1 = new BigDecimal(Double.toString(v1));
        BigDecimal b2 = new BigDecimal(Double.toString(v2));
        return b1.subtract(b2);
    }

    /**
     * 乘
     */
    public static BigDecimal mul(double v1, double v2) {
        BigDecimal b1 = new BigDecimal(Double.toString(v1));
        BigDecimal b2 = new BigDecimal(Double.toString(v2));
        return b1.multiply(b2);
    }

    /**
     * 除
     */
    public static BigDecimal div(double v1, double v2) {
        BigDecimal b1 = new BigDecimal(Double.toString(v1));
        BigDecimal b2 = new BigDecimal(Double.toString(v2));
        //四舍五入,保留2位小数，2为精度取值
        return b1.divide(b2, 2, BigDecimal.ROUND_HALF_UP);
    }
}
